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Add 21/7 and 90/64

1st number: 3 0/7, 2nd number: 1 26/64

21/7 + 90/64 is 141/32.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 64 is 448

    Next, find the equivalent fraction of both fractional numbers with denominator 448
  2. For the 1st fraction, since 7 × 64 = 448,
    21/7 = 21 × 64/7 × 64 = 1344/448
  3. Likewise, for the 2nd fraction, since 64 × 7 = 448,
    90/64 = 90 × 7/64 × 7 = 630/448
  4. Add the two like fractions:
    1344/448 + 630/448 = 1344 + 630/448 = 1974/448
  5. 1974/448 simplified gives 141/32
  6. So, 21/7 + 90/64 = 141/32
    In mixed form: 413/32

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